4 Copyright (C) Andrew Tridgell 2006
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, see <http://www.gnu.org/licenses/>.
20 #ifndef _CTDB_PRIVATE_H
21 #define _CTDB_PRIVATE_H
23 #include "ctdb_client.h"
24 #include <sys/socket.h>
27 recovery daemon memdump reply address
29 struct rd_memdump_reply {
35 description for a TAKEOVER_RUN message reply address
37 struct takeover_run_reply {
43 * pid of the ctdbd daemon
45 extern pid_t ctdbd_pid;
48 a tcp connection description
49 also used by tcp_add and tcp_remove controls
51 struct ctdb_tcp_connection {
52 ctdb_sock_addr src_addr;
53 ctdb_sock_addr dst_addr;
56 /* the wire representation for a tcp tickle array */
57 struct ctdb_tcp_wire_array {
59 struct ctdb_tcp_connection connections[1];
62 /* the list of tcp tickles used by get/set tcp tickle list */
63 struct ctdb_control_tcp_tickle_list {
65 struct ctdb_tcp_wire_array tickles;
69 array of tcp connections
71 struct ctdb_tcp_array {
73 struct ctdb_tcp_connection *connections;
77 /* all tunable variables go in here */
79 uint32_t max_redirect_count;
80 uint32_t seqnum_interval; /* unit is ms */
81 uint32_t control_timeout;
82 uint32_t traverse_timeout;
83 uint32_t keepalive_interval;
84 uint32_t keepalive_limit;
85 uint32_t recover_timeout;
86 uint32_t recover_interval;
87 uint32_t election_timeout;
88 uint32_t takeover_timeout;
89 uint32_t monitor_interval;
90 uint32_t tickle_update_interval;
91 uint32_t script_timeout;
92 uint32_t script_timeout_count; /* allow dodgy scripts to hang this many times in a row before we mark the node unhealthy */
93 uint32_t script_unhealthy_on_timeout; /* obsolete */
94 uint32_t recovery_grace_period;
95 uint32_t recovery_ban_period;
96 uint32_t database_hash_size;
97 uint32_t database_max_dead;
98 uint32_t rerecovery_timeout;
100 uint32_t deterministic_public_ips;
101 uint32_t reclock_ping_period;
102 uint32_t no_ip_failback;
103 uint32_t disable_ip_failover;
104 uint32_t verbose_memory_names;
105 uint32_t recd_ping_timeout;
106 uint32_t recd_ping_failcount;
107 uint32_t log_latency_ms;
108 uint32_t reclock_latency_ms;
109 uint32_t recovery_drop_all_ips;
110 uint32_t verify_recovery_lock;
111 uint32_t vacuum_default_interval;
112 uint32_t vacuum_max_run_time;
113 uint32_t repack_limit;
114 uint32_t vacuum_limit;
115 uint32_t vacuum_min_interval;
116 uint32_t vacuum_max_interval;
117 uint32_t max_queue_depth_drop_msg;
118 uint32_t use_status_events_for_monitoring;
119 uint32_t allow_unhealthy_db_read;
120 uint32_t stat_history_interval;
121 uint32_t deferred_attach_timeout;
122 uint32_t vacuum_fast_path_count;
123 uint32_t lcp2_public_ip_assignment;
124 uint32_t allow_client_db_attach;
128 an installed ctdb remote call
130 struct ctdb_registered_call {
131 struct ctdb_registered_call *next, *prev;
137 this address structure might need to be generalised later for some
140 struct ctdb_address {
146 check that a pnn is valid
148 #define ctdb_validate_pnn(ctdb, pnn) (((uint32_t)(pnn)) < (ctdb)->num_nodes)
151 /* called from the queue code when a packet comes in. Called with data==NULL
153 typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
156 /* used for callbacks in ctdb_control requests */
157 typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
158 int32_t status, TDB_DATA data,
159 const char *errormsg,
162 structure describing a connected client in the daemon
165 struct ctdb_context *ctdb;
167 struct ctdb_queue *queue;
170 struct ctdb_tcp_list *tcp_list;
172 uint32_t num_persistent_updates;
173 struct ctdb_client_notify_list *notify;
178 /* state associated with a public ip address */
180 struct ctdb_vnn *prev, *next;
182 struct ctdb_iface *iface;
184 ctdb_sock_addr public_address;
185 uint8_t public_netmask_bits;
187 /* the node number that is serving this public address, if any.
188 If no node serves this ip it is set to -1 */
191 /* List of clients to tickle for this public address */
192 struct ctdb_tcp_array *tcp_array;
194 /* whether we need to update the other nodes with changes to our list
195 of connected clients */
196 bool tcp_update_needed;
198 /* a context to hang sending gratious arp events off */
199 TALLOC_CTX *takeover_ctx;
201 struct ctdb_kill_tcp *killtcp;
205 state associated with one node
208 struct ctdb_context *ctdb;
209 struct ctdb_address address;
210 const char *name; /* for debug messages */
211 void *private_data; /* private to transport */
215 /* used by the dead node monitoring */
220 /* used to track node capabilities, is only valid/tracked inside the
223 uint32_t capabilities;
225 /* a list of controls pending to this node, so we can time them out quickly
226 if the node becomes disconnected */
227 struct daemon_control_state *pending_controls;
229 /* used by the recovery daemon when distributing ip addresses
230 across the nodes. it needs to know which public ip's can be handled
233 struct ctdb_all_public_ips *known_public_ips;
234 struct ctdb_all_public_ips *available_public_ips;
235 /* used by the recovery dameon to track when a node should be banned */
236 struct ctdb_banning_state *ban_state;
240 transport specific methods
242 struct ctdb_methods {
243 int (*initialise)(struct ctdb_context *); /* initialise transport structures */
244 int (*start)(struct ctdb_context *); /* start the transport */
245 int (*add_node)(struct ctdb_node *); /* setup a new node */
246 int (*connect_node)(struct ctdb_node *); /* connect to node */
247 int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
248 void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
249 void (*shutdown)(struct ctdb_context *); /* shutdown transport */
250 void (*restart)(struct ctdb_node *); /* stop and restart the connection */
254 transport calls up to the ctdb layer
256 struct ctdb_upcalls {
257 /* recv_pkt is called when a packet comes in */
258 void (*recv_pkt)(struct ctdb_context *, uint8_t *data, uint32_t length);
260 /* node_dead is called when an attempt to send to a node fails */
261 void (*node_dead)(struct ctdb_node *);
263 /* node_connected is called when a connection to a node is established */
264 void (*node_connected)(struct ctdb_node *);
267 /* list of message handlers - needs to be changed to a more efficient data
268 structure so we can find a message handler given a srvid quickly */
269 struct ctdb_message_list {
270 struct ctdb_context *ctdb;
271 struct ctdb_message_list *next, *prev;
273 ctdb_msg_fn_t message_handler;
274 void *message_private;
277 /* additional data required for the daemon mode */
278 struct ctdb_daemon_data {
281 struct ctdb_queue *queue;
285 #define CTDB_UPDATE_STAT(ctdb, counter, value) \
287 if (value > ctdb->statistics.counter) { \
288 ctdb->statistics.counter = c->hopcount; \
290 if (value > ctdb->statistics_current.counter) { \
291 ctdb->statistics_current.counter = c->hopcount; \
295 #define CTDB_INCREMENT_STAT(ctdb, counter) \
297 ctdb->statistics.counter++; \
298 ctdb->statistics_current.counter++; \
301 #define CTDB_DECREMENT_STAT(ctdb, counter) \
303 if (ctdb->statistics.counter > 0) \
304 ctdb->statistics.counter--; \
305 if (ctdb->statistics_current.counter > 0) \
306 ctdb->statistics_current.counter--; \
309 #define CTDB_UPDATE_RECLOCK_LATENCY(ctdb, name, counter, value) \
311 if (value > ctdb->statistics.counter.max) \
312 ctdb->statistics.counter.max = value; \
313 if (value > ctdb->statistics_current.counter.max) \
314 ctdb->statistics_current.counter.max = value; \
316 if (ctdb->statistics.counter.num == 0 || value < ctdb->statistics.counter.min) \
317 ctdb->statistics.counter.min = value; \
318 if (ctdb->statistics_current.counter.num == 0 || value < ctdb->statistics_current.counter.min) \
319 ctdb->statistics_current.counter.min = value; \
321 ctdb->statistics.counter.total += value; \
322 ctdb->statistics_current.counter.total += value; \
324 ctdb->statistics.counter.num++; \
325 ctdb->statistics_current.counter.num++; \
327 if (ctdb->tunable.reclock_latency_ms != 0) { \
328 if (value*1000 > ctdb->tunable.reclock_latency_ms) { \
329 DEBUG(DEBUG_ERR, ("High RECLOCK latency %fs for operation %s\n", value, name)); \
335 #define CTDB_UPDATE_LATENCY(ctdb, db, operation, counter, t) \
337 double l = timeval_elapsed(&t); \
339 if (l > ctdb->statistics.counter.max) \
340 ctdb->statistics.counter.max = l; \
341 if (l > ctdb->statistics_current.counter.max) \
342 ctdb->statistics_current.counter.max = l; \
344 if (ctdb->statistics.counter.num == 0 || l < ctdb->statistics.counter.min) \
345 ctdb->statistics.counter.min = l; \
346 if (ctdb->statistics_current.counter.num == 0 || l < ctdb->statistics_current.counter.min) \
347 ctdb->statistics_current.counter.min = l; \
349 ctdb->statistics.counter.total += l; \
350 ctdb->statistics_current.counter.total += l; \
352 ctdb->statistics.counter.num++; \
353 ctdb->statistics_current.counter.num++; \
355 if (ctdb->tunable.log_latency_ms !=0) { \
356 if (l*1000 > ctdb->tunable.log_latency_ms) { \
357 DEBUG(DEBUG_WARNING, ("High latency %.6fs for operation %s on database %s\n", l, operation, db->db_name));\
366 #define INVALID_GENERATION 1
367 /* table that contains the mapping between a hash value and lmaster
369 struct ctdb_vnn_map {
376 a wire representation of the vnn map
378 struct ctdb_vnn_map_wire {
384 /* a structure that contains the elements required for the write record
387 struct ctdb_write_record {
391 unsigned char blob[1];
394 enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
396 #define CTDB_MONITORING_ACTIVE 0
397 #define CTDB_MONITORING_DISABLED 1
399 /* The different capabilities of the ctdb daemon. */
400 #define CTDB_CAP_RECMASTER 0x00000001
401 #define CTDB_CAP_LMASTER 0x00000002
402 /* This capability is set if CTDB_LVS_PUBLIC_IP is set */
403 #define CTDB_CAP_LVS 0x00000004
404 /* This capability is set if NATGW is enabled */
405 #define CTDB_CAP_NATGW 0x00000008
407 #define NUM_DB_PRIORITIES 3
408 /* main state of the ctdb daemon */
409 struct ctdb_context {
410 struct tevent_context *ev;
411 struct timeval ctdbd_start_time;
412 struct timeval last_recovery_started;
413 struct timeval last_recovery_finished;
414 uint32_t recovery_mode;
415 TALLOC_CTX *tickle_update_context;
416 TALLOC_CTX *keepalive_ctx;
417 TALLOC_CTX *check_public_ifaces_ctx;
418 struct ctdb_tunable tunable;
419 enum ctdb_freeze_mode freeze_mode[NUM_DB_PRIORITIES+1];
420 struct ctdb_freeze_handle *freeze_handles[NUM_DB_PRIORITIES+1];
421 bool freeze_transaction_started;
422 uint32_t freeze_transaction_id;
423 struct ctdb_address address;
425 const char *db_directory;
426 const char *db_directory_persistent;
427 const char *db_directory_state;
428 struct tdb_wrap *db_persistent_health;
429 uint32_t db_persistent_startup_generation;
430 uint64_t db_persistent_check_errors;
431 uint64_t max_persistent_check_errors;
432 const char *transport;
433 char *recovery_lock_file;
434 int recovery_lock_fd;
435 uint32_t pnn; /* our own pnn */
437 uint32_t num_connected;
439 uint32_t capabilities;
440 struct idr_context *idr;
442 struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
443 struct ctdb_vnn *vnn; /* list of public ip addresses and interfaces */
444 struct ctdb_vnn *single_ip_vnn; /* a structure for the single ip */
445 struct ctdb_iface *ifaces; /* list of local interfaces */
447 const struct ctdb_methods *methods; /* transport methods */
448 const struct ctdb_upcalls *upcalls; /* transport upcalls */
449 void *private_data; /* private to transport */
450 struct ctdb_db_context *db_list;
451 struct ctdb_message_list *message_list;
452 struct ctdb_daemon_data daemon;
453 struct ctdb_statistics statistics;
454 struct ctdb_statistics statistics_current;
455 #define MAX_STAT_HISTORY 100
456 struct ctdb_statistics statistics_history[MAX_STAT_HISTORY];
457 struct ctdb_vnn_map *vnn_map;
458 uint32_t num_clients;
459 uint32_t recovery_master;
460 struct ctdb_call_state *pending_calls;
461 struct ctdb_client_ip *client_ip_list;
462 struct trbt_tree *server_ids;
464 void *saved_scheduler_param;
465 const char *event_script_dir;
466 const char *notification_script;
467 const char *default_public_interface;
473 struct ctdb_monitor_state *monitor;
474 struct ctdb_log_state *log;
475 int start_as_disabled;
476 int start_as_stopped;
478 uint32_t event_script_timeouts; /* counting how many consecutive times an eventscript has timedout */
479 uint32_t *recd_ping_count;
480 TALLOC_CTX *release_ips_ctx; /* a context used to automatically drop all IPs if we fail to recover the node */
482 TALLOC_CTX *event_script_ctx;
484 struct ctdb_event_script_state *current_monitor;
485 struct ctdb_scripts_wire *last_status[CTDB_EVENT_MAX];
487 TALLOC_CTX *banning_ctx;
489 struct ctdb_vacuum_child_context *vacuumers;
491 /* mapping from pid to ctdb_client * */
492 struct ctdb_client_pid_list *client_pids;
494 /* used in the recovery daemon to remember the ip allocation */
495 struct trbt_tree *ip_tree;
497 /* Used to defer db attach requests while in recovery mode */
498 struct ctdb_deferred_attach_context *deferred_attach;
501 struct ctdb_db_context {
502 struct ctdb_db_context *next, *prev;
503 struct ctdb_context *ctdb;
509 struct tdb_wrap *ltdb;
510 struct ctdb_registered_call *calls; /* list of registered calls */
512 struct timed_event *seqnum_update;
513 struct ctdb_traverse_local_handle *traverse;
514 bool transaction_active;
515 struct ctdb_vacuum_handle *vacuum_handle;
516 char *unhealthy_reason;
517 int pending_requests;
518 struct lockwait_handle *lockwait_active;
519 struct lockwait_handle *lockwait_overflow;
520 struct ctdb_persistent_state *persistent_state;
521 struct trbt_tree *delete_queue;
522 int (*ctdb_ltdb_store_fn)(struct ctdb_db_context *ctdb_db,
524 struct ctdb_ltdb_header *header,
530 #define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
531 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
532 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
533 return -1; }} while (0)
535 #define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
536 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
537 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
540 #define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
541 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
542 ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
543 return NULL; }} while (0)
545 #define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
546 DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
547 ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
551 structure passed in set_call control
553 struct ctdb_control_set_call {
560 struct for kill_tcp control
562 struct ctdb_control_killtcp {
563 ctdb_sock_addr src_addr;
564 ctdb_sock_addr dst_addr;
568 struct holding a ctdb_sock_addr and an interface name,
569 used to add/remove public addresses
571 struct ctdb_control_ip_iface {
579 struct holding a ctdb_sock_addr and an interface name,
580 used for send_gratious_arp
582 struct ctdb_control_gratious_arp {
590 persistent store control - update this record on all other nodes
592 struct ctdb_control_persistent_store {
599 structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
601 struct ctdb_node_flag_change {
608 struct for admin setting a ban
610 struct ctdb_ban_info {
615 enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
617 #define CTDB_LMASTER_ANY 0xffffffff
620 state of a in-progress ctdb call
622 struct ctdb_call_state {
623 struct ctdb_call_state *next, *prev;
624 enum call_state state;
626 struct ctdb_req_call *c;
627 struct ctdb_db_context *ctdb_db;
629 struct ctdb_call *call;
632 void (*fn)(struct ctdb_call_state *);
638 /* used for fetch_lock */
639 struct ctdb_fetch_handle {
640 struct ctdb_db_context *ctdb_db;
643 struct ctdb_ltdb_header header;
646 /* internal prototypes */
647 void ctdb_set_error(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
648 void ctdb_fatal(struct ctdb_context *ctdb, const char *msg);
649 bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2);
650 int ctdb_parse_address(struct ctdb_context *ctdb,
651 TALLOC_CTX *mem_ctx, const char *str,
652 struct ctdb_address *address);
653 bool ctdb_same_ip(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
654 bool ctdb_same_sockaddr(const ctdb_sock_addr *ip1, const ctdb_sock_addr *ip2);
655 uint32_t ctdb_hash(const TDB_DATA *key);
656 uint32_t ctdb_hash_string(const char *str);
657 void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
658 void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
659 void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
660 void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
661 void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
662 void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
664 uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
665 int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
666 TDB_DATA key, struct ctdb_ltdb_header *header,
667 TALLOC_CTX *mem_ctx, TDB_DATA *data);
668 int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
669 struct ctdb_ltdb_header *header, TDB_DATA data);
670 int ctdb_ltdb_delete(struct ctdb_db_context *ctdb_db, TDB_DATA key);
671 int32_t ctdb_control_start_persistent_update(struct ctdb_context *ctdb,
672 struct ctdb_req_control *c,
674 int32_t ctdb_control_cancel_persistent_update(struct ctdb_context *ctdb,
675 struct ctdb_req_control *c,
677 void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
678 void ctdb_queue_packet_opcode(struct ctdb_context *ctdb, struct ctdb_req_header *hdr, unsigned opcode);
679 int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
680 TDB_DATA key, struct ctdb_req_header *hdr,
681 void (*recv_pkt)(void *, struct ctdb_req_header *),
682 void *recv_context, bool ignore_generation);
683 int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
684 TDB_DATA key, struct ctdb_ltdb_header *header,
685 struct ctdb_req_header *hdr, TDB_DATA *data,
686 void (*recv_pkt)(void *, struct ctdb_req_header *),
687 void *recv_context, bool ignore_generation);
688 void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
690 struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
691 struct ctdb_call *call,
692 struct ctdb_ltdb_header *header,
696 int ctdbd_start(struct ctdb_context *ctdb);
697 struct ctdb_call_state *ctdbd_call_send(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
698 int ctdbd_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
701 queue a packet for sending
703 int ctdb_queue_send(struct ctdb_queue *queue, uint8_t *data, uint32_t length);
706 setup the fd used by the queue
708 int ctdb_queue_set_fd(struct ctdb_queue *queue, int fd);
711 setup a packet queue on a socket
713 struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
714 TALLOC_CTX *mem_ctx, int fd, int alignment,
716 ctdb_queue_cb_fn_t callback,
717 void *private_data, const char *fmt, ...)
718 PRINTF_ATTRIBUTE(7,8);
721 allocate a packet for use in client<->daemon communication
723 struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
725 enum ctdb_operation operation,
726 size_t length, size_t slength,
728 #define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
729 (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
731 struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
733 enum ctdb_operation operation,
734 size_t length, size_t slength,
736 #define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
737 (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
739 int ctdb_queue_length(struct ctdb_queue *queue);
742 lock a record in the ltdb, given a key
744 int ctdb_ltdb_lock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
747 unlock a record in the ltdb, given a key
749 int ctdb_ltdb_unlock(struct ctdb_db_context *ctdb_db, TDB_DATA key);
753 make a ctdb call to the local daemon - async send. Called from client context.
755 This constructs a ctdb_call request and queues it for processing.
756 This call never blocks.
758 struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
759 struct ctdb_call *call);
762 make a recv call to the local ctdb daemon - called from client context
764 This is called when the program wants to wait for a ctdb_call to complete and get the
765 results. This call will block unless the call has already completed.
767 int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
769 int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
770 uint64_t srvid, TDB_DATA data);
775 int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t pnn,
776 uint64_t srvid, TDB_DATA data);
779 struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
781 void (*callback)(void *), void *private_data);
783 struct ctdb_call_state *ctdb_daemon_call_send(struct ctdb_db_context *ctdb_db,
784 struct ctdb_call *call);
786 int ctdb_daemon_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
788 struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctdb_db,
789 struct ctdb_call *call,
790 struct ctdb_ltdb_header *header);
792 int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
793 struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx,
796 #define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
798 void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
800 int ctdb_socket_connect(struct ctdb_context *ctdb);
802 #define CTDB_BAD_REQID ((uint32_t)-1)
803 uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
804 void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
805 void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
807 void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
808 void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
810 int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
811 uint64_t srvid, uint32_t opcode, uint32_t client_id, uint32_t flags,
813 ctdb_control_callback_fn_t callback,
816 int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
817 TDB_DATA *outdata, uint64_t tdb_flags,
818 bool persistent, uint32_t client_id,
819 struct ctdb_req_control *c,
822 int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
823 ctdb_fn_t fn, int id);
825 int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
826 uint32_t opcode, uint32_t flags, TDB_DATA data,
827 TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
828 struct timeval *timeout, char **errormsg);
829 int ctdb_control_recv(struct ctdb_context *ctdb,
830 struct ctdb_client_control_state *state,
832 TDB_DATA *outdata, int32_t *status, char **errormsg);
834 struct ctdb_client_control_state *
835 ctdb_control_send(struct ctdb_context *ctdb,
836 uint32_t destnode, uint64_t srvid,
837 uint32_t opcode, uint32_t flags, TDB_DATA data,
839 struct timeval *timeout,
845 #define CHECK_CONTROL_DATA_SIZE(size) do { \
846 if (indata.dsize != size) { \
847 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
848 opcode, (unsigned)indata.dsize, (unsigned)size)); \
853 #define CHECK_CONTROL_MIN_DATA_SIZE(size) do { \
854 if (indata.dsize < size) { \
855 DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected >= %u\n", \
856 opcode, (unsigned)indata.dsize, (unsigned)size)); \
861 int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
862 int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
863 int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
864 int ctdb_control_getnodemapv4(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
865 int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
866 int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
869 /* structure used for pulldb control */
870 struct ctdb_control_pulldb {
875 /* structure used for sending lists of records */
876 struct ctdb_marshall_buffer {
882 /* set dmaster control structure */
883 struct ctdb_control_set_dmaster {
889 structure for setting a tunable
891 struct ctdb_control_set_tunable {
898 structure for getting a tunable
900 struct ctdb_control_get_tunable {
906 structure for listing tunables
908 struct ctdb_control_list_tunable {
910 /* returns a : separated list of tunable names */
915 struct ctdb_node_and_flagsv4 {
918 struct sockaddr_in sin;
921 struct ctdb_node_mapv4 {
923 struct ctdb_node_and_flagsv4 nodes[1];
926 struct ctdb_control_wipe_database {
928 uint32_t transaction_id;
932 state of a in-progress ctdb call in client
934 struct ctdb_client_call_state {
935 enum call_state state;
937 struct ctdb_db_context *ctdb_db;
938 struct ctdb_call *call;
940 void (*fn)(struct ctdb_client_call_state *);
946 int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
947 TDB_DATA *outdata, uint32_t srcnode, uint32_t client_id);
948 int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
949 int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
950 int32_t ctdb_control_traverse_kill(struct ctdb_context *ctdb, TDB_DATA indata,
951 TDB_DATA *outdata, uint32_t srcnode);
953 int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
955 int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
956 int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
957 int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
959 int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
960 int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
962 struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid,
963 TDB_DATA key, struct ctdb_ltdb_header *, TDB_DATA data);
965 struct ctdb_rec_data *ctdb_marshall_loop_next(struct ctdb_marshall_buffer *m, struct ctdb_rec_data *r,
967 struct ctdb_ltdb_header *header,
968 TDB_DATA *key, TDB_DATA *data);
970 int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
971 int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
972 int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
974 int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
975 struct ctdb_req_control *c,
976 TDB_DATA indata, bool *async_reply,
977 const char **errormsg);
978 void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
979 TDB_DATA *outdata, int32_t status, const char *errormsg);
981 int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
982 int32_t ctdb_control_thaw(struct ctdb_context *ctdb, uint32_t priority);
984 int ctdb_start_recoverd(struct ctdb_context *ctdb);
985 void ctdb_stop_recoverd(struct ctdb_context *ctdb);
987 uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
989 void ctdb_disable_monitoring(struct ctdb_context *ctdb);
990 void ctdb_enable_monitoring(struct ctdb_context *ctdb);
991 void ctdb_stop_monitoring(struct ctdb_context *ctdb);
992 void ctdb_start_monitoring(struct ctdb_context *ctdb);
993 void ctdb_start_tcp_tickle_update(struct ctdb_context *ctdb);
994 void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
995 void ctdb_start_keepalive(struct ctdb_context *ctdb);
996 void ctdb_stop_keepalive(struct ctdb_context *ctdb);
997 int32_t ctdb_run_eventscripts(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA data, bool *async_reply);
1000 void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
1001 void ctdb_call_resend_all(struct ctdb_context *ctdb);
1002 void ctdb_node_dead(struct ctdb_node *node);
1003 void ctdb_node_connected(struct ctdb_node *node);
1004 bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
1005 void ctdb_set_scheduler(struct ctdb_context *ctdb);
1006 void ctdb_restore_scheduler(struct ctdb_context *ctdb);
1007 pid_t ctdb_fork(struct ctdb_context *ctdb);
1008 int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
1009 struct ctdb_req_control *c,
1012 int32_t ctdb_control_takeover_ipv4(struct ctdb_context *ctdb,
1013 struct ctdb_req_control *c,
1016 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
1017 struct ctdb_req_control *c,
1020 int32_t ctdb_control_release_ipv4(struct ctdb_context *ctdb,
1021 struct ctdb_req_control *c,
1024 int32_t ctdb_control_start_recovery(struct ctdb_context *ctdb,
1025 struct ctdb_req_control *c,
1027 int32_t ctdb_control_end_recovery(struct ctdb_context *ctdb,
1028 struct ctdb_req_control *c,
1031 struct ctdb_public_ipv4 {
1033 struct sockaddr_in sin;
1036 int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
1037 uint32_t destnode, struct ctdb_public_ip *ip);
1038 int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
1039 uint32_t destnode, struct ctdb_public_ip *ip);
1041 struct ctdb_all_public_ipsv4 {
1043 struct ctdb_public_ipv4 ips[1];
1046 int32_t ctdb_control_get_public_ipsv4(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1047 int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
1048 int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
1049 struct timeval timeout,
1051 TALLOC_CTX *mem_ctx,
1052 struct ctdb_all_public_ips **ips);
1053 #define CTDB_PUBLIC_IP_FLAGS_ONLY_AVAILABLE 0x00010000
1054 int ctdb_ctrl_get_public_ips_flags(struct ctdb_context *ctdb,
1055 struct timeval timeout, uint32_t destnode,
1056 TALLOC_CTX *mem_ctx,
1058 struct ctdb_all_public_ips **ips);
1059 int ctdb_ctrl_get_public_ipsv4(struct ctdb_context *ctdb,
1060 struct timeval timeout, uint32_t destnode,
1061 TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
1064 #define CTDB_IFACE_SIZE IFNAMSIZ
1066 #define CTDB_IFACE_SIZE 16
1069 struct ctdb_control_iface_info {
1070 char name[CTDB_IFACE_SIZE+2];
1071 uint16_t link_state;
1072 uint32_t references;
1075 struct ctdb_control_public_ip_info {
1076 struct ctdb_public_ip ip;
1077 uint32_t active_idx;
1079 struct ctdb_control_iface_info ifaces[1];
1082 struct ctdb_control_get_ifaces {
1084 struct ctdb_control_iface_info ifaces[1];
1087 int32_t ctdb_control_get_public_ip_info(struct ctdb_context *ctdb,
1088 struct ctdb_req_control *c,
1091 int32_t ctdb_control_get_ifaces(struct ctdb_context *ctdb,
1092 struct ctdb_req_control *c,
1094 int32_t ctdb_control_set_iface_link(struct ctdb_context *ctdb,
1095 struct ctdb_req_control *c,
1097 int ctdb_ctrl_get_public_ip_info(struct ctdb_context *ctdb,
1098 struct timeval timeout, uint32_t destnode,
1099 TALLOC_CTX *mem_ctx,
1100 const ctdb_sock_addr *addr,
1101 struct ctdb_control_public_ip_info **info);
1102 int ctdb_ctrl_get_ifaces(struct ctdb_context *ctdb,
1103 struct timeval timeout, uint32_t destnode,
1104 TALLOC_CTX *mem_ctx,
1105 struct ctdb_control_get_ifaces **ifaces);
1106 int ctdb_ctrl_set_iface_link(struct ctdb_context *ctdb,
1107 struct timeval timeout, uint32_t destnode,
1108 TALLOC_CTX *mem_ctx,
1109 const struct ctdb_control_iface_info *info);
1111 /* from takeover/system.c */
1112 uint32_t uint16_checksum(uint16_t *data, size_t n);
1113 int ctdb_sys_send_arp(const ctdb_sock_addr *addr, const char *iface);
1114 bool ctdb_sys_have_ip(ctdb_sock_addr *addr);
1115 bool ctdb_sys_check_iface_exists(const char *iface);
1116 int ctdb_sys_send_tcp(const ctdb_sock_addr *dest,
1117 const ctdb_sock_addr *src,
1118 uint32_t seq, uint32_t ack, int rst);
1120 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
1121 int ctdb_set_single_public_ip(struct ctdb_context *ctdb,
1124 int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
1125 int ctdb_set_event_script_dir(struct ctdb_context *ctdb, const char *script_dir);
1126 int ctdb_set_notification_script(struct ctdb_context *ctdb, const char *script);
1127 int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
1129 int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
1131 int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata, bool tcp_update_needed);
1132 int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
1133 int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
1134 int32_t ctdb_control_kill_tcp(struct ctdb_context *ctdb, TDB_DATA indata);
1135 int32_t ctdb_control_send_gratious_arp(struct ctdb_context *ctdb, TDB_DATA indata);
1136 int32_t ctdb_control_get_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1137 int32_t ctdb_control_set_tcp_tickle_list(struct ctdb_context *ctdb, TDB_DATA indata);
1139 void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
1140 int ctdb_event_script(struct ctdb_context *ctdb, enum ctdb_eventscript_call call);
1141 int ctdb_event_script_args(struct ctdb_context *ctdb, enum ctdb_eventscript_call call,
1142 const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
1143 int ctdb_event_script_callback(struct ctdb_context *ctdb,
1144 TALLOC_CTX *mem_ctx,
1145 void (*callback)(struct ctdb_context *, int, void *),
1148 enum ctdb_eventscript_call call,
1149 const char *fmt, ...) PRINTF_ATTRIBUTE(7,8);
1150 void ctdb_release_all_ips(struct ctdb_context *ctdb);
1152 void set_nonblocking(int fd);
1153 void set_close_on_exec(int fd);
1155 bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
1157 int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
1159 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
1161 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
1162 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
1163 int32_t ctdb_control_try_delete_records(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
1164 int32_t ctdb_control_add_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1165 int32_t ctdb_control_del_public_address(struct ctdb_context *ctdb, TDB_DATA indata);
1167 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
1169 int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
1171 int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
1172 struct timeval timeout,
1174 struct ctdb_tunable *tunables);
1176 int ctdb_start_freeze(struct ctdb_context *ctdb, uint32_t priority);
1178 bool parse_ip_mask(const char *s, const char *iface, ctdb_sock_addr *addr, unsigned *mask);
1179 bool parse_ip_port(const char *s, ctdb_sock_addr *addr);
1180 bool parse_ip(const char *s, const char *iface, unsigned port, ctdb_sock_addr *addr);
1181 bool parse_ipv4(const char *s, unsigned port, struct sockaddr_in *sin);
1184 int ctdb_sys_open_capture_socket(const char *iface, void **private_data);
1185 int ctdb_sys_close_capture_socket(void *private_data);
1186 int ctdb_sys_read_tcp_packet(int s, void *private_data, ctdb_sock_addr *src, ctdb_sock_addr *dst, uint32_t *ack_seq, uint32_t *seq);
1188 int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
1189 struct timeval timeout,
1191 struct ctdb_control_killtcp *killtcp);
1193 int ctdb_ctrl_add_public_ip(struct ctdb_context *ctdb,
1194 struct timeval timeout,
1196 struct ctdb_control_ip_iface *pub);
1198 int ctdb_ctrl_del_public_ip(struct ctdb_context *ctdb,
1199 struct timeval timeout,
1201 struct ctdb_control_ip_iface *pub);
1203 int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb,
1204 struct timeval timeout,
1206 ctdb_sock_addr *addr,
1207 const char *ifname);
1209 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,
1210 struct timeval timeout,
1212 TALLOC_CTX *mem_ctx,
1213 ctdb_sock_addr *addr,
1214 struct ctdb_control_tcp_tickle_list **list);
1217 int32_t ctdb_control_register_server_id(struct ctdb_context *ctdb,
1220 int32_t ctdb_control_check_server_id(struct ctdb_context *ctdb,
1222 int32_t ctdb_control_unregister_server_id(struct ctdb_context *ctdb,
1224 int32_t ctdb_control_get_server_id_list(struct ctdb_context *ctdb,
1226 int32_t ctdb_control_uptime(struct ctdb_context *ctdb,
1229 int ctdb_attach_databases(struct ctdb_context *ctdb);
1231 int32_t ctdb_control_persistent_store(struct ctdb_context *ctdb,
1232 struct ctdb_req_control *c,
1233 TDB_DATA recdata, bool *async_reply);
1234 int32_t ctdb_control_update_record(struct ctdb_context *ctdb,
1235 struct ctdb_req_control *c, TDB_DATA recdata,
1237 int32_t ctdb_control_trans2_commit(struct ctdb_context *ctdb,
1238 struct ctdb_req_control *c,
1239 TDB_DATA recdata, bool *async_reply);
1241 int32_t ctdb_control_trans3_commit(struct ctdb_context *ctdb,
1242 struct ctdb_req_control *c,
1243 TDB_DATA recdata, bool *async_reply);
1245 void ctdb_persistent_finish_trans3_commits(struct ctdb_context *ctdb);
1247 int32_t ctdb_control_transaction_start(struct ctdb_context *ctdb, uint32_t id);
1248 int32_t ctdb_control_transaction_commit(struct ctdb_context *ctdb, uint32_t id);
1249 int32_t ctdb_control_transaction_cancel(struct ctdb_context *ctdb);
1250 int32_t ctdb_control_wipe_database(struct ctdb_context *ctdb, TDB_DATA indata);
1251 int32_t ctdb_control_db_set_healthy(struct ctdb_context *ctdb, TDB_DATA indata);
1252 int32_t ctdb_control_db_get_health(struct ctdb_context *ctdb,
1257 int ctdb_vacuum(struct ctdb_context *ctdb, int argc, const char **argv);
1258 int ctdb_repack(struct ctdb_context *ctdb, int argc, const char **argv);
1260 void ctdb_block_signal(int signum);
1261 void ctdb_unblock_signal(int signum);
1262 int32_t ctdb_monitoring_mode(struct ctdb_context *ctdb);
1263 int ctdb_set_child_logging(struct ctdb_context *ctdb);
1264 void ctdb_lockdown_memory(struct ctdb_context *ctdb);
1266 typedef void (*client_async_callback)(struct ctdb_context *ctdb, uint32_t node_pnn, int32_t res, TDB_DATA outdata, void *callback_data);
1268 struct client_async_data {
1269 enum ctdb_controls opcode;
1270 bool dont_log_errors;
1272 uint32_t fail_count;
1273 client_async_callback callback;
1274 client_async_callback fail_callback;
1275 void *callback_data;
1277 void ctdb_client_async_add(struct client_async_data *data, struct ctdb_client_control_state *state);
1278 int ctdb_client_async_wait(struct ctdb_context *ctdb, struct client_async_data *data);
1279 int ctdb_client_async_control(struct ctdb_context *ctdb,
1280 enum ctdb_controls opcode,
1283 struct timeval timeout,
1284 bool dont_log_errors,
1286 client_async_callback client_callback,
1287 client_async_callback fail_callback,
1288 void *callback_data);
1290 void ctdb_load_nodes_file(struct ctdb_context *ctdb);
1292 int ctdb_control_reload_nodes_file(struct ctdb_context *ctdb, uint32_t opcode);
1294 int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata);
1295 int32_t ctdb_control_get_capabilities(struct ctdb_context *ctdb, TDB_DATA *outdata);
1297 int32_t ctdb_control_trans2_finished(struct ctdb_context *ctdb,
1298 struct ctdb_req_control *c);
1299 int32_t ctdb_control_trans2_error(struct ctdb_context *ctdb,
1300 struct ctdb_req_control *c);
1301 int32_t ctdb_control_trans2_active(struct ctdb_context *ctdb,
1302 struct ctdb_req_control *c,
1305 char *ctdb_addr_to_str(ctdb_sock_addr *addr);
1306 unsigned ctdb_addr_to_port(ctdb_sock_addr *addr);
1307 void ctdb_canonicalize_ip(const ctdb_sock_addr *ip, ctdb_sock_addr *cip);
1309 int32_t ctdb_control_recd_ping(struct ctdb_context *ctdb);
1310 int32_t ctdb_control_set_recmaster(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata);
1312 extern int script_log_level;
1313 extern bool fast_start;
1315 int32_t ctdb_control_get_event_script_status(struct ctdb_context *ctdb,
1319 int ctdb_log_event_script_output(struct ctdb_context *ctdb, char *str, uint16_t len);
1320 int ctdb_ctrl_report_recd_lock_latency(struct ctdb_context *ctdb, struct timeval timeout, double latency);
1322 int32_t ctdb_control_stop_node(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
1323 int32_t ctdb_control_continue_node(struct ctdb_context *ctdb);
1325 void ctdb_stop_vacuuming(struct ctdb_context *ctdb);
1326 int ctdb_vacuum_init(struct ctdb_db_context *ctdb_db);
1328 int32_t ctdb_control_enable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1329 int32_t ctdb_control_disable_script(struct ctdb_context *ctdb, TDB_DATA indata);
1331 int32_t ctdb_local_node_got_banned(struct ctdb_context *ctdb);
1332 int32_t ctdb_control_set_ban_state(struct ctdb_context *ctdb, TDB_DATA indata);
1333 int32_t ctdb_control_get_ban_state(struct ctdb_context *ctdb, TDB_DATA *outdata);
1334 int32_t ctdb_control_set_db_priority(struct ctdb_context *ctdb, TDB_DATA indata);
1335 void ctdb_ban_self(struct ctdb_context *ctdb);
1337 int32_t ctdb_control_register_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1339 int32_t ctdb_control_deregister_notify(struct ctdb_context *ctdb, uint32_t client_id, TDB_DATA indata);
1341 int start_syslog_daemon(struct ctdb_context *ctdb);
1343 /* Where to send the log messages back to */
1344 struct ctdb_get_log_addr {
1350 extern int log_ringbuf_size;
1352 int32_t ctdb_control_get_log(struct ctdb_context *ctdb, TDB_DATA addr);
1353 int32_t ctdb_control_clear_log(struct ctdb_context *ctdb);
1356 struct ctdb_log_state *ctdb_fork_with_logging(TALLOC_CTX *mem_ctx,
1357 struct ctdb_context *ctdb,
1358 const char *log_prefix,
1359 void (*logfn)(const char *, uint16_t, void *),
1360 void *logfn_private, pid_t *pid);
1362 int32_t ctdb_control_process_exists(struct ctdb_context *ctdb, pid_t pid);
1363 struct ctdb_client *ctdb_find_client_by_pid(struct ctdb_context *ctdb, pid_t pid);
1365 int32_t ctdb_control_get_db_seqnum(struct ctdb_context *ctdb,
1369 int ctdb_load_persistent_health(struct ctdb_context *ctdb,
1370 struct ctdb_db_context *ctdb_db);
1371 int ctdb_update_persistent_health(struct ctdb_context *ctdb,
1372 struct ctdb_db_context *ctdb_db,
1373 const char *reason,/* NULL means healthy */
1374 int num_healthy_nodes);
1375 int ctdb_recheck_persistent_health(struct ctdb_context *ctdb);
1377 void ctdb_run_notification_script(struct ctdb_context *ctdb, const char *event);
1379 void ctdb_fault_setup(void);
1381 int verify_remote_ip_allocation(struct ctdb_context *ctdb,
1382 struct ctdb_all_public_ips *ips);
1383 int update_ip_assignment_tree(struct ctdb_context *ctdb,
1384 struct ctdb_public_ip *ip);
1386 int ctdb_init_tevent_logging(struct ctdb_context *ctdb);
1388 int ctdb_statistics_init(struct ctdb_context *ctdb);
1390 int32_t ctdb_control_get_stat_history(struct ctdb_context *ctdb,
1391 struct ctdb_req_control *c,
1394 int ctdb_deferred_drop_all_ips(struct ctdb_context *ctdb);
1396 int ctdb_process_deferred_attach(struct ctdb_context *ctdb);
1399 * structure to pass to a schedule_for_deletion_control
1401 struct ctdb_control_schedule_for_deletion {
1403 struct ctdb_ltdb_header hdr;
1405 uint8_t key[1]; /* key[] */
1408 int32_t ctdb_control_schedule_for_deletion(struct ctdb_context *ctdb,
1412 int32_t ctdb_local_schedule_for_deletion(struct ctdb_db_context *ctdb_db,
1413 const struct ctdb_ltdb_header *hdr,
1416 struct ctdb_ltdb_header *ctdb_header_from_record_handle(struct ctdb_record_handle *h);
1418 /* For unit testing ctdb_transaction.c. */
1419 struct ctdb_public_ip_list {
1420 struct ctdb_public_ip_list *next;
1422 ctdb_sock_addr addr;
1424 uint32_t ip_distance(ctdb_sock_addr *ip1, ctdb_sock_addr *ip2);
1425 uint32_t ip_distance_2_sum(ctdb_sock_addr *ip,
1426 struct ctdb_public_ip_list *ips,
1428 uint32_t lcp2_imbalance(struct ctdb_public_ip_list * all_ips, int pnn);
1429 void lcp2_init(struct ctdb_context * tmp_ctx,
1430 struct ctdb_node_map * nodemap,
1432 struct ctdb_public_ip_list *all_ips,
1433 uint32_t **lcp2_imbalances,
1434 bool **newly_healthy);
1435 void lcp2_allocate_unassigned(struct ctdb_context *ctdb,
1436 struct ctdb_node_map *nodemap,
1438 struct ctdb_public_ip_list *all_ips,
1439 uint32_t *lcp2_imbalances);
1440 bool lcp2_failback(struct ctdb_context *ctdb,
1441 struct ctdb_node_map *nodemap,
1443 struct ctdb_public_ip_list *all_ips,
1444 uint32_t *lcp2_imbalances,
1445 bool *newly_healthy);
1446 void ctdb_takeover_run_core(struct ctdb_context *ctdb,
1447 struct ctdb_node_map *nodemap,
1448 struct ctdb_public_ip_list **all_ips_p);